JP4597069B2 - Display device and in-vehicle display device - Google Patents

Description

  The present invention relates to a display device that enables visual recognition according to a viewing direction, and in particular, to a vehicle-mounted display device that displays an image by a device mounted on a vehicle such as a navigation device or a DVD player. About things.

  From the viewpoint of safety, in Japan, drivers are prohibited from watching TV images and DVD images while driving a vehicle. The image watched by the driver cannot be displayed while the vehicle is running. For this reason, passengers other than the driver, for example, passengers in the passenger seat next to the driver, are not prohibited from watching TV images or DVD images. I can't see it.

  On the other hand, various technologies have been proposed for making display contents for a driver different from display contents for an occupant other than the driver. For example, in Patent Document 1, as shown in FIG. 2, a cover 16 provided with light shielding bands 14 and 15 on both front and back surfaces of a sheet body 13 is arranged on the front side of the liquid crystal display panel 10. A display device is disclosed that displays an image for a driver's seat on the band-shaped display unit 11 set every other, and displays a video for the passenger seat on the band-shaped display unit 12 set between the band-shaped display units 11. In this display device, by providing the light shielding bands 14 and 15, the light emitted from the belt-like display unit 11 for displaying the driver's seat image is incident on the eyes of the driver DR, but displays the passenger's seat image. The light emitted from the belt-like display unit 12 is prevented from entering the eyes of the driver DR, while the light emitted from the belt-like display unit 12 displaying the passenger seat image is incident on the passenger seat occupant PA. The light emitted from the belt-like display unit 11 that displays the driver seat image is prevented from entering the passenger seat passenger PA.

By adopting such a display device for an in-vehicle display device, as shown in FIG. 5A, the map image 42 by the navigation device can be seen from the driver DR but not from the passenger seat passenger PA. And the DVD image 43 by the DVD player is displayed on the display device 41 so that it can be seen from the passenger seat occupant PA but not from the driver DR, as shown in FIG. 5B. Can do. As a result, even when the vehicle is traveling, the passenger occupant PA can watch TV, movies, and the like.
JP 2003-137005 A

  As described above, in Japan, a driver is prohibited from viewing images such as DVD images and television images that the driver watches while driving. Therefore, even when a vehicle-mounted display device capable of simultaneously displaying the driver seat image and the passenger seat image on the same screen is installed in the vehicle, it is necessary to appropriately limit the driver seat image while the vehicle is traveling.

  An object of the present invention is to appropriately limit the display of video according to the installation location of the display means when using display means capable of simultaneously displaying the first video and the second video on the same screen. An object of the present invention is to provide a display device that can be used. Another object of the present invention is to provide a vehicle with display means capable of simultaneously displaying a first image (for example, a driver seat image) and a second image (for example, a passenger seat image) on the same screen. An object of the present invention is to provide an in-vehicle display device capable of appropriately restricting the display of images during vehicle travel.

The present invention provides a first image that is visible from the first direction and is not visible from the second direction, and a second image that is visible from the second direction and not visible from the first direction. Display means capable of simultaneously displaying on the same screen;
Installation location related information storage means for storing installation location related information related to the installation location of the display means;
Display control means for controlling the display means to display the first video and the second video,
When the display control means detects that the ignition switch is turned on, the installation location-related information storage means is referred to specify the installation location of the display means, and the first video and the second video are based on the specific information. It is a vehicle-mounted display device that determines that any one of the above is set as a travel restriction target, or none is set as a travel restriction target .

  According to the present invention, if the installation location related information is stored in the installation location related information storage means, the first video or the second video displayed on the display means based on the stored installation location related information. Display is limited. The installation location related information is information related to the installation location such as the installation location of the display means and the position of the handle. This makes it possible to appropriately limit the display according to the installation status of the display means.

  For example, when a display device is mounted on a vehicle, it is necessary to limit the display of images in the direction of the driver's seat in consideration of vehicle traveling safety. In this case, when it is detected that the vehicle is traveling when a video (display restricted video) that is restricted from being displayed in the direction of the driver's seat is displayed while the vehicle is traveling, The displayable video that is allowed to be displayed in the direction of the driver's seat can be displayed. Accordingly, it is possible to restrict the display by accurately determining in which direction the image to be restricted when the vehicle is traveling, that is, the image for the driver's seat, is in which direction.

  According to the present invention, when the installation location related information is handle position information indicating whether the handle is a right handle or a left handle, the display control means limits display of an image in the handle direction based on the handle position information. It is a feature.

  According to the present invention, when the handle position information is stored as the installation location related information, the display of the image in the handle direction among the first image and the second image is restricted. The image in the direction of the steering wheel is a video that can be seen from the position of the steering wheel, that is, a video for the driver's seat. As a result, it is possible to restrict the display by accurately determining in which direction the video that is restricted when the vehicle is traveling, that is, the video for the driver's seat, is in which direction.

  Further, the present invention is characterized in that when the installation location related information is installation location information indicating that the display means is installed in a rear seat, the display control means does not limit the video displayed on the display means. Yes.

  According to the present invention, when the installation location related information is installation location information indicating that the display means is installed in the rear seat, neither the first video nor the second video is the driver seat video. The display of is not restricted. Thereby, it is possible to appropriately limit the display of video according to the installation status of the display means.

The present invention also includes a storage means for storing at least information related to the driver's seat direction;
A first image that is visible from the first direction and not visible from the second direction and a second image that is visible from the second direction and not visible from the first direction are displayed on the same screen. Display means capable of simultaneously displaying; and
Traveling detection means for detecting that the vehicle is traveling;
Display control means for controlling the display means to display the first video and the second video ,
When the display control means detects that the ignition switch is turned on, it refers to the storage means and either one of the first and second images is used as a driver seat image, or neither of them is a driver seat image. When the travel detection means detects that the vehicle is traveling, a displayable image that is not limited to display when traveling is displayed as the driver seat image .

  According to the present invention, when it is detected that the vehicle is running, a displayable image that is permitted to be displayed in the direction of the driver's seat is displayed. The displayable video is a video that the driver does not watch, for example. Accordingly, it is possible to prevent the driver from gazing at the image of the driver's seat direction, that is, the image for the driver's seat during driving, and it is possible to realize an image display in consideration of safety when the vehicle is traveling.

  In the present invention, it is detected that the vehicle is traveling by the travel detection means when the display control means is displaying a display restriction image that is restricted from being displayed in the driver seat direction. The displayable image is displayed on the display means in a driver seat direction.

  According to the present invention, when the display restriction image is displayed as the image of the driver seat direction on the display means and the detection means detects that the vehicle is traveling, the displayable image is displayed in the driver seat direction. It is displayed on the display means as a video. The display restriction image is an image that the driver may watch, for example. Accordingly, it is possible to prevent the driver from gazing at the image of the driver's seat direction, that is, the image for the driver's seat during driving, and it is possible to realize an image display in consideration of safety when the vehicle is traveling.

The present invention also includes a video selection means for selecting a video to be displayed in the direction of the driver's seat from a plurality of types of displayable video,
The display control means displays the selected displayable video on the display means in the direction of the driver's seat based on the selection result of the video selection means.

  According to the present invention, the displayable video displayed in the direction of the driver's seat when it is detected that the vehicle is traveling can be set as the displayable video selected by the driver. As a result, the image of the driver's seat direction displayed while the vehicle is traveling can be made a displayable image according to the driver's preference.

In the present invention, when the travel detection means detects that the vehicle is traveling, the display control means displays an input operation image in the direction of the passenger seat.
According to the present invention, the input operation image is displayed in the direction of the passenger seat while the vehicle is traveling. As a result, the passenger in the passenger seat can perform the input operation on behalf of the driver, so that the driver can be prevented from being distracted by the input operation. Therefore, it is possible to realize video display in consideration of safety during vehicle travel.

  According to the present invention, when the display control means is displaying the input operation image in the driver's seat direction and the traveling detection means detects that the vehicle is traveling, the display control means moves in the passenger seat direction. The video for input operation is displayed.

  According to the present invention, when the vehicle is started while the input operation image is displayed as the driver seat direction image and the driver is performing the input operation, the input operation image is displayed as the passenger seat direction image. Is done. Therefore, when the input operation by the driver is interrupted by the start of the vehicle, the passenger in the passenger seat can perform the subsequent input operation. As a result, the input operation can be surely performed without interruption.

  According to the present invention, the video to be displayed on the display unit is limited based on the installation location related information such as the steering wheel position information and the installation unit information of the display unit. It becomes possible to restrict the display by accurately determining which direction the image that needs to be limited, that is, the image for the driver's seat is.

  Further, according to the present invention, when the display restriction image is displayed as the driver seat image, when it is detected that the vehicle is running, the displayable image is displayed as the driver seat image. It is possible to suppress the driver's gazing at the driver's seat video during driving, and to realize video display considering safety when the vehicle is running.

Further, according to the present invention, the displayable video displayed instead of the display restricted video can be changed to a video according to the driver's preference.
Further, according to the present invention, when the input operation by the driver is interrupted due to the start of the vehicle, the passenger in the passenger seat can perform the subsequent input operation. As a result, the input operation can be surely performed without interruption.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a block diagram for explaining a schematic configuration of an in-vehicle display device according to an embodiment of the present invention. The in-vehicle display device includes a display unit 1, a display control unit 2, a video signal source 3, a vehicle speed sensor 4, a memory 5, and a user setting input unit 6. This in-vehicle display device displays not only a video display based on a video signal from the video signal source 3, but also an operation input video of an electronic device (including the video signal source 3) mounted on the vehicle.

  The display unit 1 can display the driver seat image in the driver seat direction and the passenger seat image in the passenger seat direction, for example, with a configuration as shown in FIG. The display unit 1 corresponds to display means.

  The display control unit 2 as display control means includes a CPU (central processing unit) 21, a memory I / F (interface) 22, a GUI (graphic user interface) 23, a video distributor 24, and a left video output unit. 25, a right video output unit 26, and a panel controller 27. The CPU 21 receives input information from the user setting input unit 6 that is input via the GUI 23, control program and setting information that is read from the memory 5 through the memory I / F 22, vehicle speed information that is input from the vehicle speed sensor 4, and the like. Based on this, the overall operation of the display control unit 2 is controlled.

  The video distributor 24 distributes and outputs one or a plurality of video signals output from the video signal source 3 to the left video output unit 25 and the right video output unit 26. The left video output unit 25 creates a left video signal to be given to the strip display unit 12 that displays the left video on the liquid crystal display panel 10 based on a control signal from the CPU 21 and outputs the left video signal to the panel controller 27. Similarly, the right video output unit 26 creates a right video signal to be given to the strip display unit 11 that displays the right video on the liquid crystal display panel 10 based on a control signal from the CPU 21 and outputs the right video signal to the panel controller 27. The panel controller 27 displays the left video on the strip-shaped display unit 12 of the liquid crystal display panel 10 based on the left video signal supplied from the left video output unit 25, and strips based on the right video signal supplied from the right video output unit 26. The right image is displayed on the display unit 11.

  The video signal source 3 includes a video output device whose main function is to output a video to be shown to an occupant. The video output device includes a navigation device 31, a DVD player 32, and a television receiver 33. And so on. Also, the video signal source 3 includes a device that outputs an operation input video although the video output is not a main function like the audio player. The vehicle speed sensor 4 detects the traveling speed of the vehicle and outputs a detection signal to the CPU 21. The vehicle speed sensor 4 and the CPU 21 correspond to travel detection means.

  The memory 5 includes a ROM, a RAM, a hard disk, an EPROM (electrically writable ROM), and the like. In the EPROM, installation location related information is recorded as initial setting information of the in-vehicle display device. The installation location related information is information related to the installation location such as the installation location of the display unit 1 and the position of the handle. This installation location related information is input and set by the user when the in-vehicle display device is installed in the vehicle. The input setting can be performed using the user setting input unit 6. The memory 5 corresponds to installation location related information storage means.

  The user setting input unit 6 is realized by, for example, a transparent touch panel, and is disposed on the front side of the display unit 1, more precisely on the front side of the cover 16 illustrated in FIG. 2. Then, the CPU 21 displays an operation switch on the display unit 1 as an operation input image. In this state, if the user presses an area corresponding to the operation switch on the touch panel, the CPU 21 recognizes that the operation switch has been pressed, and outputs an operation instruction signal corresponding to the pressed operation switch to the corresponding device. .

  From the left video output unit 25 and the right video output unit 26 described above, not only the video signal converted from the video signal supplied from the video signal source 3 into a mode suitable for display on the display unit 1 but also displayed during traveling of the vehicle. A video signal corresponding to displayable video that is not limited is output. The displayable video is a video that is not watched by the driver, and includes, for example, a still video and a moving video that can predict a change in video to some extent. On the other hand, a display restriction image whose display is restricted while the vehicle is running is an image that the driver watches, and a moving image such as a DVD image by the DVD player 32 or a TV image by the television receiver 33. Or, for example, it is a complicated operation input video in which the transition of the video in the navigation device 31 is frequent or a scroll operation is required.

  FIG. 3 is a flowchart for explaining the processing contents of the CPU 21 in the display control unit 2. For example, when the driver turns on the ignition switch, the process is started. In step a1, the contents of the installation location related information recorded in the EPROM of the memory 5 are confirmed. If the installation location related information is handle position information indicating that it is a left handle, in step a2, the CPU 21 recognizes the left image as a travel restriction object and recognizes it as a driver seat image.

  If the installation location related information is handle position information indicating that it is the right handle, in step a3, the CPU 21 recognizes the right-side image as a travel restriction image and as a driver seat image.

  When the installation location related information is installation location information indicating that the in-vehicle display device (exactly the display unit 1) is installed in the rear seat, in step a4, the CPU 21 determines which of the left video and the right video. Is not subject to travel restrictions and is not recognized as a driver seat image. That is, even when the vehicle is detected to be running while the display restriction video is displayed on both or one of the left video and the right video, the video display is continued as it is.

  FIG. 4 is a flowchart for explaining the processing contents when the video is displayed by the CPU 21. This process is performed when the driver seat image is displayed. That is, it is performed when the left side image or the right side image is recognized as a travel restriction object in step a2 or step a3 in FIG. 3 as a driver seat image and the driver seat image is displayed on the display unit 1. is there.

  In step b1, it is determined whether or not the vehicle is traveling based on the sensor signal from the vehicle speed sensor 4. If it is determined that the vehicle is traveling, the process proceeds to step b2, and it is determined whether or not the driver seat image is a display restriction image. If it is determined that the driver seat image is a display-restricted image, the process proceeds to step b3, and the displayable image is displayed as the driver seat image.

  The displayable video is a video that is not watched by the driver as described above, and includes, for example, a still video or a video that can predict a change in video to some extent. As the displayable video, for example, the following video can be used.

  As a predetermined still image, an initial screen of the audio player, a so-called blue back screen of blue color, for example, a black screen of black color realized by stopping the video output, displayed immediately before the vehicle running is detected It is possible to use a captured video of a moving image. In addition, as a moving image that can predict a change in the image to some extent, a simple repeated moving image such as a vehicle position display screen while the vehicle is traveling by the navigation device 31 or a screen saver of a personal computer can be used.

  If it is determined in step b1 that the vehicle is not traveling, or if it is determined that the driver seat image is not a display restriction image, the process proceeds to step b4, and the current image display state is continued.

According to the above embodiment, the following effects can be obtained.
(1) In the above embodiment, the installation location related information is stored in the EPROM of the memory 5, and the right image and the left image displayed on the display unit 1 based on the stored installation location related information are subject to travel regulation. Whether or not it is a video for the driver's seat. As a result, the driver's seat image can be appropriately regulated according to the installation location of the display unit 1 while the vehicle is traveling. For example, when steering wheel position information is stored as installation location related information, the right image is recognized as a driving restriction image for right steering when it is a right steering wheel, and the left image is driven for driving restriction when it is a left steering wheel. Recognized as a seat video. As a result, the display of the driver's seat image is appropriately limited while the vehicle is traveling. Further, when the installation location related information is installation location information indicating that the display unit 1 is installed in the rear seat, neither the right side image nor the left side image is recognized as a driving regulation image and is not recognized as a driver seat image. Therefore, the displayed image is not limited even when the vehicle is running. Thus, by referring to the installation location related information, it is possible to appropriately limit the display of the driver's seat image according to the installation location of the display unit 1.

  (2) According to the above embodiment, when the display restriction image is displayed on the display unit 1 as the driver seat image, if it is detected that the vehicle is traveling, the displayable image is displayed for the driver seat. It is displayed on the display unit 1 as an image. Thus, the driver can be prevented from gazing at the driver's seat image, and an image display in consideration of safety when the vehicle is traveling can be realized.

In addition, you may change the said embodiment as follows.
The driver may be able to select an image to be displayed as a driver seat image while driving the vehicle from a plurality of types of displayable images. The video is selected using a user setting input unit 6 which is a video selection means. In this case, when it is detected that the vehicle is traveling, the displayable image selected by the driver is displayed as the driver seat image. As a result, the driver seat image displayed instead of the display restriction image while the vehicle is running can be made a displayable image according to the driver's preference.

  -When it is detected that the vehicle is running while displaying the input operation image as the driver seat image, the displayable image is displayed as the driver seat image and the input as the passenger seat image. An operation video may be displayed. In this case, if the vehicle is started while the input operation image is displayed as the driver seat image and the driver is performing the input operation, the displayable image is displayed as the driver seat image, and the passenger seat image is displayed. As described above, the input operation video is displayed. Therefore, when the input operation by the driver is interrupted by the start of the vehicle, the passenger in the passenger seat can perform the subsequent input operation. As a result, the input operation can be surely performed without interruption.

  -When the input operation image is displayed as the driver seat image and the vehicle is detected to be running, the control for displaying the input operation image as the passenger seat image is for all input operations. It may be performed on a video, or may be performed on a specific input operation video. For example, when an input operation image requiring a complicated operation that requires a scroll operation is displayed, the image is displayed as a passenger seat image, and the input operation is completed by pressing the switch once. When an input operation image that may be a simple operation is displayed, it may not be displayed as a passenger seat image.

  The fact that the vehicle is running means that, for example, the parking brake signal (PKB signal) is off, the movement of the vehicle is detected by a GPS (Global Positioning System) signal, the gyroscope built in the navigation device 31 The determination may be made based on the detection of vibration based on the detection result.

  ・ When it is detected that the vehicle is running, the control to display the video that can be displayed as the driver's seat video is not only performed when the display restriction video is displayed as the driver's seat video, You may make it perform irrespective of a display state. For example, when it is detected that the vehicle is running when the driver's seat image is not displayed, a displayable image may be displayed. Further, when it is detected that the vehicle is running while displaying the displayable image as the driver seat image, the display may be switched to another displayable image.

  ・ When it is detected that the vehicle is running, the control for displaying the input operation image as the passenger seat image is not only performed when the input operation image is displayed as the driver seat image, but also for the driver seat. You may make it perform irrespective of the display state of an image | video. For example, if the driver's seat image is not displayed, or if the vehicle is detected while the display restriction image or displayable image is displayed as the driver's seat image, the passenger seat image is used for input operation. An image may be displayed.

  -Although the said embodiment demonstrated the case of the vehicle-mounted display apparatus, a display apparatus can be installed and used not only in the vehicle interior of a vehicle but in various places.

1 is a block diagram showing a schematic configuration of an in-vehicle display device that is an embodiment of the present invention. 3 is a schematic diagram showing a configuration of a display unit 1. FIG. 4 is a flowchart for explaining processing contents of a CPU 21 in the display control unit 2. The flowchart for demonstrating the processing content at the time of the video display by CPU21. (A) And (b) is a schematic diagram which shows an example of a video display.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display part 2 Display control part 3 Video signal source 4 Vehicle speed sensor 5 Memory 6 User setting input part 21 CPU
25 Left Video Output Unit 26 Right Video Output Unit 31 Navigation Device 32 DVD Player 33 Television Receiver

Claims (8)

A first image that is visible from the first direction and not visible from the second direction and a second image that is visible from the second direction and not visible from the first direction are displayed on the same screen. Display means capable of simultaneously displaying; and
Installation location related information storage means for storing installation location related information related to the installation location of the display means;
Display control means for controlling the display means to display the first video and the second video,
When the display control unit detects that the ignition switch is turned on, the display control unit identifies the installation location of the display unit with reference to the installation location related information storage unit, and the first video and the second video are based on the specific information. one or a driving restriction object, or both determines that no driving restriction object, vehicle display device. When the installation location related information is handle position information indicating whether it is a right handle or a left handle, the display control means sets a video in the handle direction as a travel restriction target based on the handle position information. Item 2. A vehicle-mounted display device according to Item 1. When the installation location related information is installation location information indicating that the display unit is installed in a rear seat, the display control unit does not set the first and second images as subject to travel regulation. vehicle display device according to claim 1. Storage means for storing at least information relating to the driver's seat direction;
A first image that is visible from the first direction and not visible from the second direction and a second image that is visible from the second direction and not visible from the first direction are displayed on the same screen. Display means capable of simultaneously displaying; and
Traveling detection means for detecting that the vehicle is traveling;
Display control means for controlling the display means to display the first video and the second video ,
When the display control means detects that the ignition switch is turned on, it refers to the storage means and either one of the first and second images is used as a driver seat image, or neither of them is a driver seat image. An on-vehicle display device, wherein when the travel detection means detects that the vehicle is traveling, a displayable image that is not restricted during travel is displayed as the driver seat image .   When the display control means is displaying a display restriction image that is restricted to be displayed in the driver's seat direction, when the traveling detection means detects that the vehicle is traveling, the driver's seat direction The in-vehicle display device according to claim 4, wherein the displayable image is displayed on the display unit. Comprising an image selection means for selecting an image to be displayed on the driver's seat direction from the double several displayable images,
The in- vehicle display according to claim 4 or 5, wherein the display control means causes the display means to display the selected displayable video in the direction of the driver's seat based on the selection result of the video selection means. apparatus.   The display control means displays an input operation image in the direction of the passenger seat when the traveling detection means detects that the vehicle is traveling. The in-vehicle display device described in 1.   The display control means displays the input operation image in the passenger seat direction when the travel detection means detects that the vehicle is traveling while the input operation image is displayed in the driver seat direction. The vehicle-mounted display device according to claim 7, wherein:

Images